Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
  • B29C45/0001—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor characterised by the choice of material
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
  • B29C45/17—Component parts, details or accessories; Auxiliary operations
  • B29C45/40—Removing or ejecting moulded articles
  • B29C45/4005—Ejector constructions; Ejector operating mechanisms
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
  • B29C45/17—Component parts, details or accessories; Auxiliary operations
  • B29C45/40—Removing or ejecting moulded articles
  • B29C45/43—Removing or ejecting moulded articles using fluid under pressure
  • B29C45/435—Removing or ejecting moulded articles using fluid under pressure introduced between a mould core and a hollow resilient undercut article, e.g. bellows
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
  • A61H9/00—Pneumatic or hydraulic massage
  • A61H9/005—Pneumatic massage
  • A61H9/0057—Suction
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
  • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
  • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
  • B29C45/17—Component parts, details or accessories; Auxiliary operations
  • B29C45/26—Moulds
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
  • B29C45/17—Component parts, details or accessories; Auxiliary operations
  • B29C45/40—Removing or ejecting moulded articles
  • B29C45/43—Removing or ejecting moulded articles using fluid under pressure
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
  • B29C45/17—Component parts, details or accessories; Auxiliary operations
  • B29C45/26—Moulds
  • B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
  • B29C45/17—Component parts, details or accessories; Auxiliary operations
  • B29C45/40—Removing or ejecting moulded articles
  • B29C45/44—Removing or ejecting moulded articles for undercut articles
  • B29C45/4407—Removing or ejecting moulded articles for undercut articles by flexible movement of undercut portions of the articles
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
  • B29K2083/00—Use of polymers having silicon, with or without sulfur, nitrogen, oxygen, or carbon only, in the main chain, as moulding material
  • B29K2083/005—LSR, i.e. liquid silicone rubbers, or derivatives thereof
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
  • B29L2031/00—Other particular articles
  • B29L2031/703—Bellows

Definitions

• the present invention relates to a method and apparatus for making a cupping device, and more particularly to a method and apparatus for making a silicone rubber cupping device. Background technique
• Cupping equipment is a traditional Chinese medicine medical device with a long history and remarkable results.
• traditional cupping tools are usually made of hard materials such as ceramics, bamboo tubes, glass, and suction cupping made of plexiglass.
• Cupping made of hard material usually needs to be ignited or pumped to form a certain negative pressure in the cavity to pull it in a certain part of the human body. Ignition cupping, easy to burn; pumping and cupping, operation is not convenient enough.
• the cupping made of hard material is easy to fall off with the skin bulging after being pulled up, and it is difficult to pull out the uneven muscles such as joints and spine. They are not easy to carry.
• cupping devices made of rubber or silicone rubber have also appeared. Compared with cupping devices made of hard materials, cupping made of rubber or silicone rubber has the following characteristics:
• the existing manufacturing technique for rubber or silicone rubber cupping tools is by compression molding.
• the general process of the press forming technology is as follows: After the solid silicone rubber is mixed by the mixer, the mixed film is cut into a size and thickness suitable for filling the cavity of the mold by the cutting machine, and the weighing is slightly more than The weight of the product is then placed in the mold cavity, the mold is mounted on a pressure forming machine, the pressure forming machine is started, held at a certain temperature for a certain period of time, molded, and finally the cupping device is completed by demolding.
• Molding has the following disadvantages: First, the process is complicated, and it has to undergo multiple processes such as rubber mixing, mixing, cutting, weighing, discharging, molding, molding vulcanization, demoulding, and flashing, and the processing time is long. The production efficiency is low; the second is that the forming method is rough and not fine, it is difficult to avoid the deviation of product quality caused by manual operation in the molding process; the third is the difficulty of demoulding, the cupping utensil is vulnerable to damage during the strong demoulding process, and the scrap rate High, at the same time, the mold must be disassembled during the demoulding process, which is time-consuming and labor-intensive, increases labor intensity, and prolongs manufacturing time.
• the present invention provides a method and a device for manufacturing a silicone rubber cupping device.
• the liquid silicone rubber is used as a raw material, and the silicone rubber vulcanization molding technology is used to manufacture a silicone rubber cupping with high elasticity, high transparency and complicated shape.
• the appliance has simple process, complete automation, high production efficiency, simple and quick demolding, and no need to disassemble the cleaning device during the demoulding process.
• a device for manufacturing a silicone rubber cupping device comprising a nozzle, an inner core, a separable row position and a blow stripping device; the row position being composed of at least two separable row blocks, the row position Forming a mold cavity for forming a silicone rubber cupping device with the inner core; the nozzle is connected at one end to a channel for inputting a liquid silicone rubber material, and the other end is connected to the mold cavity; The device is in communication with the mold cavity through a blowhole opening disposed at the interface of the inner core and the mold cavity.
• the row position includes a concave structure
• the inner mold core includes a convex structure
• a mold type for forming a silicone rubber cupping device is formed between the concave structure of the row position and the convex structure of the inner mold core Cavity.
• a flow path is formed on the flow path of the nozzle communicating with the mold cavity, and the hot flow path is a flow path formed by the intersection block at the interface between the row blocks in the combined state.
• the air blowout device may include a blowhole, one end of the blowhole is a blowhole opening, the opening is in communication with the mold cavity, and further includes: being located in the blowhole to control opening and closing of the blowhole opening a blowing needle; the blowing channel is a frustum hole structure near the opening of the blowing hole, and a cross-sectional diameter of the frustum hole structure near the opening of the blowing hole is smaller than an opening away from the blowing hole opening a cross-sectional diameter, the blow pin includes a hollow stem portion and a top portion adjacent to the blow hole opening, the stem portion having a gas hole communicating with the blow hole in the hollow portion, the top portion being the blow hole
• the frustum hole structure of the track has the same taper angle and can be closely attached to the frustum structure.
• the blow tunnel is disposed in the inner core, and a top surface of the top of the blow needle may be in a shape that is flush or smoothly transitioned with an inner mold surface of the mold cavity near the blow tunnel opening.
• the air blow-off device may further include an air inlet for conveying the gas into the air blowing channel, one end of the air inlet is connected to the high-pressure air source through the air inlet, and the other end is opened in the hollow portion of the air-blowing needle .
• the portion of the blowing tunnel outside the structure of the frustoconical hole is a two-stage variable diameter pipe, the section close to the structure of the frustum hole is a small diameter section, and the large diameter section is provided with a high pressure gas leakage prevention in the middle. Open hole gasket.
• the apparatus for manufacturing a silicone rubber cupping device may further include a template for fixing and/or wrapping a row position and an inner core, the template including a front template and a rear template separable from each other; or The template is separable.
• the apparatus for manufacturing a silicone rubber cupping device may further include at least one heat insulating panel for isolating the mold region, the mold region being an area composed of at least a row position, an inner core, and a mold cavity formed thereby.
• the inner core may be a separable and/or detachable structure composed of an inner mold insert and an inner mold core holder, the inner mold insert having a plug structure, and the inner mold core having a socket structure
• the plug structure is adapted to the slot structure.
• the apparatus for manufacturing a silicone rubber cupping device may further include a heat generating device that heats the liquid silicone rubber material to be vulcanized.
• the heat generating device may be a heat pipe or a heat generating plate.
• the mold cavity may be in the shape of a gourd, the blow tunnel opening being in communication with the mold cavity at the top center of the gourd shape; and/or the mold cavity may have a thickness of 7 to 16 mm.
• the high pressure gas pressure blown by the air blow release device may be 6 to 7.5 atmospheres; the mold cavity is two or more.
• a method for manufacturing a silicone rubber cupping device using the above-described device for manufacturing a silicone rubber cupping device comprising the following steps:
• preheating and cooling protection heating the mold area while cooling the passage through which the liquid silicone rubber material is to flow and/or the area around the passage; the mold area is at least by the row position, the inner core and The area formed by the mold cavity formed by it;
• Vulcanization Stop feeding and keep warm for a certain period of time
• Step 4) can include the following steps 4.1) to 4.3):
• the separable rows are separated perpendicularly or approximately perpendicular to the axial direction of the mold cavity to expose the outer mold face of the silicone rubber cupping device in the mold cavity to the air;
• Blowing and demoulding The high pressure gas enters between the inner mold surface of the mold cavity and the formed silicone rubber cupping device through the blow hole opening, and blows the solidified silicone rubber cupping device away from the inner mold surface;
• step 5 Cycle production: Repeat steps 2) through 4) above.
• the apparatus further includes a template for fixing and/or wrapping the row position and the inner core, the template may be a separable structure, and the step 4.1) is replaced by: the separable template is separated , separating the detachable rows from the two sides perpendicular or perpendicular to the axial direction of the mold cavity, exposing the outer mold surface of the silicone rubber cupping device in the mold cavity to the air, and blowing the mold release device to the mold type
• the high pressure gas pressure blown from the inner die face of the chamber may be 6 to 7.5 atmospheres.
• the method can be used to simultaneously produce one or more silicone rubber cupping devices.
• a silicone rubber cupping device is produced by the above-described apparatus for manufacturing a silicone rubber cupping device, and/or the above method for producing a silicone rubber cupping device.
• the silicone rubber cupping device may be an open, transparent, elastic silicone rubber cupping device.
• the invention provides a device for manufacturing a silicone rubber cupping device, which is formed by forming a mold cavity for forming a silicone rubber cupping device between a row position and an inner core, and inputting the nozzle of the liquid silicone rubber material and the blowing gas.
• the demolding device is respectively connected with the mold cavity to form an injection vulcanization molding device dedicated to preparing a silicone rubber cupping device, thereby being capable of using liquid silicone rubber
• the silicone rubber cupping device with high elasticity, high transparency and complex shape can be manufactured by injection vulcanization molding technology, and the structure is simple, and the separable row position and the inner core separation can realize the whole process automation of injection molding and high production efficiency.
• the blow-off release device makes the demolding process simple and quick, and the demolding process does not require disassembly and assembly of the cleaning device.
• the liquid silicone rubber itself has better transparency than the solid silicone rubber, and is manufactured by the process of the invention. Due to the improved precision of the mold and the good surface finish, the shortcomings of the past elastic cupping opacity and translucency can be completely solved.
• the silicone rubber cupping device produced by the present invention has a more obvious advantage over similar products.
• the injection mold of the device for manufacturing a silicone rubber cupping device of the invention has high precision and good alignment, and the product does not have a misalignment phenomenon, and basically has no flash, and basically no subsequent manual treatment is required.
• the hot runner is disposed at the interface of the separable row position, which can avoid the blockage of the liquid silicone rubber material to the hot runner, so that the solidified silicone rubber can be automatically removed during the demolding process. A separate cleaning step for the hot runner is eliminated.
• a further aspect of the present invention preferably provides a demolding device including a blowing tunnel and a blowing needle, a frustum hole structure having the same taper angle and capable of closely fitting the blowing tunnel, and a cone at the top of the blowing needle
• the structure of the table body can make the blowing needle completely close the opening of the blowing hole in the sealed state, and can prevent the liquid silicone rubber raw material from flowing into the blowing hole during injection.
• the top of the blowing needle of the further aspect of the present invention has a shape similar to or smooth transition to the inner die face near the opening of the blowhole opening, and can avoid uneven protrusions or depressions at the opening position of the blowhole opening, thereby avoiding influence
• the quality of the product ensures the uniformity of the silicone rubber cupping device after molding.
• the inlet of the further aspect of the present invention separates the entry of the high pressure gas from the control of the blowing needle, and is separately controlled by the intake passage and the blowing passage, respectively, thereby simplifying the design and reducing the requirements for the blowing passage.
• a further aspect of the invention provides a gasket at a suitable location on the blowhole to prevent leakage of high pressure gas.
• the template of the further aspect of the invention is separable, and the template is integrated during injection molding to ensure sealing during injection; the template is separable during demolding, ensuring that the separable rows are not separated when separated The template is hampered.
• the heat shield of the further aspect of the invention prevents solidification of the liquid silicone rubber material during the flow.
• the inner core of the further aspect of the invention is separable and/or detachable, which facilitates the processing of the inner core, and can only replace the inner mold insert when the mold needs to be replaced, thereby reducing the cost and reducing the maintenance time. .
• the mold cavity of the further aspect of the present invention is a gourd shape, so that the produced silicone rubber cupping device can achieve an excellent therapeutic effect.
• a further aspect of the present invention provides a thickness range of the mold cavity, and the silicone rubber cupping device prepared by the mold cavity having the thickness range has a better therapeutic effect.
• a further aspect of the present invention provides a cold runner that allows the inlet of the liquid silicone rubber material to be more flexible, and the raw material in the cold runner does not solidify, thereby reducing waste of raw materials in the product manufacturing process.
• the thermal insulation device and/or the cooling water channel of a further aspect of the invention prevents solidification of the liquid silicone rubber material as it flows through the cold runner.
• the sealant of the further aspect of the present invention can ensure that there is no residual silicone rubber in the passage through which the liquid silicone rubber material will flow after the injection of the liquid silicone rubber material, thereby avoiding possible cleaning steps in subsequent procedures.
• a further aspect of the invention provides a preferred gas pressure that is blown out by the blow-off release device for more rapid demolding.
• a further aspect of the present invention provides a method for fabricating a silicone rubber cupping device.
• the raw material is replaced by a molded solid rubber into an injection-molded liquid silicone rubber as compared with the conventional press forming process, because the liquid silicone rubber has good fluidity.
• the filler is uniform and there is no dead angle, which greatly reduces the defective products caused by uneven packing.
• Use liquid silicone rubber The raw materials are manufactured by the method of the present invention, so that the products are fine, smooth, beautiful, and the performance is greatly improved. At the same time, it also solves the quality problems often caused by traditional molding processes such as bubbles, pitting, scratches, stains and impurities.
• the method combines the rubber compound and the additive as a raw material input, and can complete the production once in a few seconds, and the first vulcanization molding eliminates the mixing, cutting, weighing, discharging, molding, etc. of the front end of the molding process. Process. Moreover, the charging is accurate, the raw materials are greatly saved, and the process is simple.
• the detachable row position and the inner core are separated to realize full automation of injection molding, and the production efficiency is high, and the air stripping device makes the demoulding simple and quick, and the demoulding process does not need to be disassembled and cleaned.
• Device Compared with the press forming process, the liquid silicone rubber injection process has a short curing time. For products of the same wall thickness, the curing time is only a fraction of the molding time, so the number of cavities using the mold is also Usually a fraction of the number of molded mold cavities also greatly increases production efficiency.
• the production process is basically automated. All the processes require only one person to look at the machine. The time and personnel savings required to produce a set of products are more than 10 times. It also greatly reduces the waste of electrical energy.
• a further aspect of the present invention provides a preferred demolding step by which the mold release can be facilitated and facilitated so that the apparatus for making a silicone rubber cupping apparatus does not require disassembly and cleaning during the demolding process.
• a further aspect of the present invention provides a cycle production step for batch, automated production of the silicone rubber cupping device, which increases production efficiency and automation.
• the silicone rubber cupping device prepared by the apparatus and method of the present invention has the characteristics of high elasticity, high transparency, and complicated shape.
• the silicone rubber cupping device of the further aspect of the invention is transparent, which can help the user to clearly observe the patient's skin condition on the outside, and facilitate timely adjustment of the treatment measures.
• the silicone rubber cupping device of the further aspect of the present invention is elastic, and can achieve a negative pressure and absorb the skin without ignition.
• Figure 1 a is a schematic illustration of one embodiment of the apparatus of the present invention.
• Figure 1 b is a schematic illustration of one embodiment of the apparatus of the present invention.
• Figure 2 is a side view of Figure 1b.
• Figure 3 is a schematic illustration of one embodiment of the apparatus of the present invention.
• FIG. 4 is a schematic illustration of a blow release device of one embodiment of the apparatus of the present invention.
• the reference numerals are as follows:
• a device for manufacturing a silicone rubber cupping device as shown in FIG. 1 a, FIG. 1 b and FIG. 2 , comprising a nozzle 12 (also referred to as a nozzle), an inner core 4, and a detachable row position 7 (also referred to as It is a slider or a front or outer mold), and a blow release device 6.
• the blow molding device 6 is used for blow molding.
• the row position 7 includes a concave shape, the row position being composed of at least two separable row position blocks, and the inner mold core includes a convex shape.
• a mold cavity 1 for forming a silicone rubber cupping tool is formed between the convex shape of the inner core 4 and the concave shape of the row position 7.
• the blow molding device 6 communicates with the mold cavity 1 through a blow hole opening 23 provided at the interface of the inner core 4 and the mold cavity 1.
• the nozzle 12 is connected to the channel of the liquid silicone rubber raw material, and the other end is connected to the mold cavity 1, that is, the liquid silicone rubber material is injected into the mold cavity 1 through the nozzle 12 to make the liquid silicone rubber material
• a silicone rubber cupping device can be formed in the mold cavity 1.
• One end of the nozzle 12 for inputting the liquid silicone rubber material may also be in communication with the cold runner 17, and the liquid silicone rubber material is input through the cold runner 17, that is, the liquid silicone rubber material is introduced into the nozzle 12 through the cold runner 17. The other end of the nozzle 12 is injected into the mold cavity 1.
• the nozzle 12 can also be connected to the mold cavity 1 via a length of hot runner 27.
• the position of the hot runner 27 may be disposed on a certain row block, but preferably, the nozzle 12 is provided with a section of the hot runner 27 on the flow path communicating with the mold cavity 1, the hot runner 27 being the row block a flow path formed at an interface between row-level blocks in a combined state, such that when the row-position block needs to be separated (ie, separated), such as demolding, the at least two row-position blocks are separated from each other, and
• the outer die face 26 of the silicone rubber cupping device in the mold cavity 1 and the hot runner 27 are exposed to the air to facilitate subsequent demolding and to prevent the formation of solidified rubber in the nozzle 12 from interfering with subsequent automated production.
• the outer die face 26 refers to the interface between the silicone rubber cupping device in the mold cavity 1 and the row position 7, as shown in Fig. 1a and Fig. 1b.
• the shape of the mold cavity may be a gourd shape as shown in FIG. 1 a and FIG. 1 b , and the blow hole opening 23 communicates with the mold cavity 1 at the center of the top of the gourd shape, and may of course be other shape. After clinical trials, the gourd-shaped silicone rubber cupping device has excellent therapeutic effects.
• the row position 7 in the present invention may be separable in the axial direction perpendicular to the silicone rubber cupping device, and may of course be separated from the axial direction of the silicone rubber cupping device. It is also possible to arrange a plurality of separable rows along the axial direction of the mold cavity 1 away from the mold cavity 1 in the axial direction of the mold cavity 1, so that the outer mold of the silicone rubber cupping device in the mold cavity 1 can also be made.
• the face 26 is exposed to the air; if there is a hot runner 27 at this time, the hot runner 27 can be disposed at the interface between the two row blocks.
• the inner core 4 may be of a unitary structure, as shown in Fig.
• the apparatus for manufacturing a silicone rubber cupping device may further include a heat generating device that heats the liquid silicone rubber material to be vulcanized, such as the heat generating tube 13.
• a heat generating device that heats the liquid silicone rubber material to be vulcanized, such as the heat generating tube 13. It should be noted that although the heat generating device is an essential device for the liquid silicone rubber injection molding process, it may be installed inside the device for manufacturing the silicone rubber cupping device as part of the device, but the heat generating device does not have to be
• the structure integrated with the apparatus for manufacturing a silicone rubber cupping device may be provided with heat by other external heating means.
• the device for manufacturing a silicone rubber cupping device itself may be free of heat generating means.
• the heat generating device may be a heat generating tube 13, or other form of heat generating device such as a heat generating sheet, a heat generating sheet, or the like.
• the heat pipe 13 is taken as an example of the heat generating device, but the following embodiment should not be considered as a heating device. Set any restrictions.
• the heat pipe 13 may be mounted in the formwork (such as in the front formwork 8 and/or the rear formwork 3) or in the inner core 4 and/or the row position 7.
• the tail portion of the air blow release device 6 (i.e., the portion of the blow mold release device 6 adjacent to the outside of the device for manufacturing the silicone rubber cupping device) may be connected to a high pressure gas source.
• the air blow release device 6 may include a blow release device fixing plate 16 at its tail for fixing and controlling it.
• the air blowout device 6 includes a blowhole 21, and one end of the blowhole 21 is a blowhole opening 23 that communicates with the mold cavity 1 and also includes a blowhole. 21, a blow needle that controls the opening and closing of the blowhole opening 23.
• the air blowing channel 21 is a frustum hole structure near the air blowing hole opening 23, and a cross-sectional diameter of the frustum hole structure near the air blowing hole opening 23 is smaller than a distance away from the air blowing hole opening 23.
• the cross-sectional diameter of the blow pin includes a hollow stem portion 62 and a top portion 61 adjacent the blow tunnel opening 23.
• the stem portion 62 has a vent 24 in communication with the blowhole 21 in the hollow portion.
• the top portion 61 is a frustum structure having the same taper angle as the frustum hole of the air blowing hole 21 and capable of being closely fitted, that is, the top portion 61 of the air blowing needle is raised to the air blowing hole opening 23
• the outer tapered surface of the frustum structure of the air blowing needle top 61 and the inner tapered surface of the frustum hole structure of the air blowing hole 21 near the air blowing opening 23 can be closely adhered to ensure that During the injection molding process, when the blow pin top 61 is placed against the blow hole opening 23 (ie, the frustum hole structure of the blow hole 21 positions the frustum structure of the blow pin top 61), the mold cavity 1 can Being completely sealed (sealed), the liquid silicone rubber cannot flow into the air blowing passage 21 through the air blowing opening 23; and during the demolding process, the air blowing needle is away from the mold cavity along the air blowing hole 21.
• the blow hole opening 23 is opened to allow the blow hole 21 to communicate with the mold cavity 1, at which time high pressure gas can enter the mold cavity 1 through the blow hole 21.
• the frustum hole structure and the frustum in the frustum structure may be a circular table which is positioned and matched with each other, or an elliptical table or a prism (for example, a triangular prism, a quadrangular prism, a hexagonal prism, etc.).
• the blowing holes 21 are provided in the inner core 4.
• the inner wall of the hollow structure of the inner core is the air blowing tunnel wall 211 (as shown in the figure)
• the top surface of the top portion 61 of the air blowing needle is in a shape that is flat or smoothly transitioned with the inner mold surface 25 of the mold cavity 1 near the air blowing opening 23, for example, if the inner mold surface is here 25 should be a plane or a micro-curved surface according to the continuity of the inner inner mold surface 25, as shown in Fig. 1a, where the shape of the top surface of the top portion 61 of the air blowing needle is the above-mentioned plane or micro-curved surface. This avoids uneven protrusions or depressions at the position of the blowhole opening 23, thereby avoiding affecting the quality of the product and ensuring the uniformity of the silicone rubber cupping device after molding.
• the inner mold face 25 refers to the interface between the inner core 4 and the silicone rubber cupping tool in the mold cavity 1, as shown in Fig. 1a and Fig. 1b.
• the blow-off release device 6 may further include an intake port 29 for conveying a gas into the blow hole 21, as shown in Figs. 1a and 1b.
• the inlet end 29 is connected to the high pressure gas source through the inlet port 28, and the other end of the inlet port 29 is opened in the hollow portion of the blowing needle.
• high pressure gas enters the blow tunnel 21 through the intake passage 29 and enters the mold cavity 1 through the blow passage opening 23.
• a section of the reduced diameter pipe, a section adjacent to the frustoconical hole structure is a small diameter section, and a gasket 30 having an opening in the middle to prevent leakage of high pressure gas is disposed in the large diameter section, as shown in FIG. 1 a and FIG. 1 . b and Figure 4.
• the outer edge of the gasket 30 is sealingly fitted to the inner wall of the air blowing hole 21, and the inner edge of the middle opening is sealingly fitted to the outer wall of the rod portion 62 of the air blowing needle, thereby preventing the high pressure gas from leaking outward.
• the tail portion of the air blowing needle portion 62 may be provided as a portion having a boss, and the tail portion of the air blowing hole 21 may be provided to have an inner convex portion. a portion of the table, and the boss of the tail portion of the air blowing needle portion 62 is matched with the inner boss of the tail portion of the air blowing hole 21, and a gasket 30 is installed between the two portions, as shown in FIG.
• the portion of the air channel 21 outside the frustum hole structure is a two-stage variable diameter pipe, and a section close to the frustum hole structure is a small diameter section, and a large diameter section is provided with a high pressure gas leakage prevention in the middle.
• An apertured gasket 30 for closing the blow during the forming process The gap between the gas needle and the blowing tunnel 21 during the bonding.
• the air blow release device 6 may be another structure that can close the blow hole 21 at the time of molding and communicate the blow hole 21 with the mold cavity 1 at the time of demolding.
• the tail portion of the air blowing needle rod portion 62 is provided with a portion having a boss and a tail portion of the air blowing hole 21.
• the inner boss presses the gasket 30 between the two, so that when the blowing needle portion 62 is pulled apart to cause the blowing needle top 61 to leave the blowing opening 23, the blowing needle top 61 and the blowing port
• the distance L1 of the opening 23 is smaller than the distance L2 between the boss of the tail portion of the air blowing needle portion 62 and the inner boss of the tail portion of the air blowing hole 21, and the difference between the latter L2 and the former should be slightly smaller than that of the gasket 30.
• the present invention has been described mainly by taking the air blowing and releasing device 6 including the air blowing opening 23, the air blowing port 21, and the air blowing needle as an example, but this should not be regarded as any limitation on the air blowing releasing device 6.
• the high-pressure gas pressure blown by the air blow-off device is preferably 6 to 7.5 atmospheres, and the formed silicone rubber cupping tool can be smoothly released.
• the apparatus for manufacturing a silicone rubber cupping device may have two or more mold cavities 1 .
• the apparatus for making a silicone rubber cupping device may further include a template for fixing and/or wrapping the row position and the inner core, and the template may include a front template 8 and a rear template 3.
• the template may also be separable; at least, the portion of the template wrap and/or fixed row 7 is separable.
• the template can be divided into a front template 8 and a rear template 3 which are separable from each other.
• the detachable front template 8 wraps and supports the row position 7, so in this embodiment the front template 8 is itself separable, and the rear template 3 only needs to be separable from the front template.
• the template portion of the parcel row 7 may also be other cases. For example, as shown in FIG.
• the separation direction of the detachable front template 8 itself in Fig. 1a may be a separation movement which is separated in parallel or approximately parallel to the separation direction of the row position 7 (the separation direction of the row position 7 in Fig. 1a is left and right separation) (The separation direction of the detachable front template 8 is also left and right separated), or it may be moved in other directions away from the row position (for example, the detachable front template 8 may be separated in the upper left and upper right directions, respectively).
• the separation direction of the detachable front template 8 itself in Fig. 1a may be a separation movement which is separated in parallel or approximately parallel to the separation direction of the row position 7 (the separation direction of the row position 7 in Fig. 1a is left and right separation) (The separation direction of the detachable front template 8 is also left and right separated), or it may be moved in other directions away from the row position (for example, the detachable front template 8 may be separated in the upper left and upper right directions, respectively).
• the respective half of the front template and the rear template enclose the row position, so in Fig. 3, the front template 8 and the rear template 3 are separated in parallel or approximately parallel to the separation direction of the row position (i.e., Separation in the up and down direction in 3) makes the separation of the row position unrestricted.
• the apparatus for manufacturing a silicone rubber cupping device may further include at least one heat insulating panel 2 for isolating the mold region.
• the mold area is an area composed of at least the row position 7, the inner core 4 and the mold cavity 1 formed therein.
• the mold area may further include a front template 8 And post template 3.
• the mold area needs heating and heat preservation during the injection molding process, and the liquid silicone rubber can maintain its fluidity at a lower temperature. Therefore, it is necessary to pass the cold flow path 17 through which the mold area and the liquid silicone rubber material flows through the heat insulating material or heat insulation.
• Plate 2 is thermally insulated.
• the inner core 4 may be a separable and/or detachable structure composed of an inner mold insert 5 and an inner core holder 41, as shown in Figs. 1 b, 2 and 3.
• the inner mold insert 5 has a plug structure
• the inner core retainer 41 has a groove structure
• the insert structure and the groove structure are matched.
• Separable means that the inner mold insert 5 and the inner core retainer 41 can be separated.
• the detachable means that the inner mold insert 5 and/or the inner core retainer 41 can be detached from other components connected thereto, such as the rear die plate 3. Down and install.
• the device for manufacturing a silicone rubber cupping device may further include a sealing needle 22, wherein the sealing needle 22 is connected to the high-pressure gas source, and the other end is connected to the cold runner 17.
• the high-pressure gas source may be the same gas source as the high-pressure gas source of the air-blasting device 6; the high-pressure gas source may be an external air source, or may be installed in the manufacturing silicone rubber cupping device. The built-in internal air supply.
• Preheating and cooling protection heating the mold area while cooling the passage through which the liquid silicone rubber material will flow (ie, the passage into the liquid silicone rubber material), such as the nozzle 12, or the area around the passage.
• the passage through which the liquid silicone rubber material may flow includes the cold runner 17, and the cold runner 17 is also cooled so that the liquid silicone rubber material does not undergo temperature rise vulcanization during transport.
• the liquid silicone rubber material herein may include a liquid additive to be added to the liquid silicone rubber. Therefore, the liquid silicone rubber material containing the liquid additive may also be simply referred to as a liquid silicone rubber material.
• the mold section includes a row position 7, an inner core 4, and a mold cavity 1 formed by the row position 7 and the inner core 4, as shown in Fig. 1a.
• the heating of the mold area may be by means of a heat generating device installed in the mold area, such as the heat pipe 13 or the heat generating plate or the heat generating sheet, or the heat may be supplied by an external heating device, and the heat supplied should be as much as possible in the mold area.
• the portions are kept at the same or close temperature so that the portions of the silicone rubber cupping device product in the mold cavity 1 have uniform properties.
• Vulcanization Stop feeding and keep it for a certain period of time to vulcanize and solidify the liquid silicone rubber material.
• step 4) preferably includes the following specific steps:
• the separable rows 7 are separated perpendicularly or approximately perpendicular to the axial direction of the mold cavity 1 to expose the outer die face 26 of the silicone rubber cupping device in the mold cavity 1 to the air.
• the blow hole opening 23 in the blow molding device 6 is opened to allow the blow release device 6, such as the blow hole 21 in Fig. 4, to communicate with the mold cavity 1.
• the air blow release device 6 is mainly composed of a blow hole opening 23, a blow hole 21, and a blow needle, and the inner core 4 is together with a vulcanized solidified silicone rubber cupping device in the mold cavity 1. Relative movement of the blow needle in the opposite direction (in FIG. 4, the blow needle moves downward, the inner core 4 moves upward together with the silicone rubber cupping device), and the inner mold of the blow needle and the mold cavity 1 A space is formed between the faces 25.
• the high-pressure gas source blows high-pressure gas to the inner mold surface 25 of the mold cavity 1 through the blowing hole 21 and the blowing opening 23 of the blowing and releasing device 6, thereby releasing the solidified silicone rubber cupping device Inner mold face 25.
• the pressure of the high-pressure gas is preferably 6 to 7.5 atm, and the formed silicone rubber cupping device can be smoothly and quickly blown out.
• step 5) can also be included: Cycle production: Repeat steps 2) through 4).
• step 4.1) becomes: separable template separation (including the former template 8 itself separated in Figure 1 a, 1 b as described above, or the front in Figure 3
• the template 8 is separated from the rear template 3, of course, including other types of template separation), so that the separable row position 7 is separated perpendicularly or approximately perpendicular to the axial direction of the mold cavity, so that the silicon in the mold cavity 1
• the outer die face 26 of the rubber cupping device is exposed to the air.
• the above-mentioned sealing needle 22 may be further included, and the sealing needle 22 is connected to a high-pressure gas source, and the other end is connected with a channel through which the liquid silicone rubber material is to flow, such as the cold runner 17 .
• the nozzle 12 is connected; at this time, after the step 2), the sealing process of the step 2A) may be further included: stopping the flow of the liquid silicone rubber material into the passage, such as the cold runner 17 and/or the nozzle 12, to make the high pressure gas
• the liquid silicone rubber stock residue in the passage is flushed out of the passage by the seal needle 22 flushing into the passage.
• silicone rubber cupping device it is possible to simultaneously produce one or more silicone rubber cupping devices, such as two, three, four, five, six, and eight silicone rubber cupping devices. Of course, it can also be used to produce more silicone rubber cupping equipment at the same time.
• a second embodiment of a method of manufacturing a silicone rubber cupping device by the above-described apparatus for manufacturing a silicone rubber cupping device In conjunction with the drawings (mainly referring to Figs. 1a, 1b and 2), a method of manufacturing a silicone rubber cupping device The second embodiment, that is, the steps of a simple case of producing a silicone rubber cupping device at a time, is explained as follows:
• the inner core 4 may also be a detachable structure composed of the inner mold insert 5 and the inner core holder 41 to facilitate the processing of the inner core 4, and only the inner mold insert may be replaced when the mold needs to be replaced. 5, the cost is reduced, the maintenance and care time is reduced; at this time, the mold area further includes the inner mold insert 5 and the inner mold core holder 41, and the mold cavity 1 is composed of the inner mold core holder 41, The area between the inner die face 25 of the die insert 5 and the outer die face 26 of the row position 7 is formed as shown in Fig. 1b.
• the heating of the mold zone may be performed by installing the heat pipe 13 in the front die plate 8 and the rear die plate 3, or the heat pipe 13 may be installed in the inner core 4 and/or the row position 7 for heating, as shown in Fig. 2
• the heat pipe 13 is mounted on the inner core holder 41, and the heat pipe 13 is installed in the row position 7 as shown in FIG.
• the cold runner 17 While heating, the cold runner 17 needs to be cooled. Since the liquid silicone rubber is accelerated and vulcanized and solidified at a temperature above 90 ° C, in order to ensure the fluidity of the liquid silicone rubber in the subsequent feeding process, the cold runner 17 needs to be cooled to a temperature lower than 50 ° C.
• the critical cooling zone for the cold runner 17 is near the cold runner 17, but in practice a heat shield 2 is typically installed between the panel 10 and/or the blow release unit retaining plate 16 and the mold section.
• the peripheral area of the panel 10 and/or the blow-off device fixing plate 16 is also kept low, as shown in Fig. 1a, Fig. 1b, and Fig. 3.
• the heat shield 2 can be a high temperature resistant foam or other form of insulation for industrial applications such as asbestos sheets.
• the area near the circumference of the cold runner 17 is cooled by water cooling.
• the cooling water is introduced into the cooling water passage 19 through the cooling water hole 18 connected to the external cooling water source, and the cold flow path 17 and/or the panel 10 is cooled, and of course, the blowing release device can also be used.
• the fixing plate 16 is cooled, as shown in FIG. 1 a and FIG. 1 b , so as to facilitate the worker to be burnt without being subjected to manual operation, such as the panel 10 and the blow release device fixing plate 16 and the mold area.
• the heat shield 2 is installed between the panel 10 and the peripheral portion of the blow release device fixing plate 16 to be kept at a lower temperature, as shown in Fig. 1a, Fig. 1b, and Fig. 3.
• the heat shield 2 may be made of a heat resistant material such as a heat resistant bakelite or asbestos board.
• the liquid silicone rubber material is injected into the mold cavity 1 through the cold runner 17, the nozzle 12 and the hot runner 27.
• FIG. 1 a Take FIG. 1 a as an example for explanation.
• a tip 12 i.e., a nozzle
• a mouthpiece 11 for thermally insulating the mouthpiece 12.
• the liquid silicone rubber material passes through the nozzle 12 through the preset hot runner in the row position 7. 27 is injected into the mold cavity 1. After the injection is completed, the liquid silicone rubber material is stopped.
• Vulcanization After stopping the feeding, it needs to be kept for a certain period of time, and the liquid silicone rubber is vulcanized and solidified.
• the holding time is determined by the amount of liquid silicone rubber injected into the mold cavity 1. When the amount of liquid silicone rubber injected is large, the holding time is slightly longer. For example, for a larger silicone rubber cupping device (such as an inner diameter of 66 mm at the opening and an outer diameter of 78 mm), since only one process is produced in one process, it needs to be kept for 20 seconds to 40 seconds; and for smaller ones (such as an inner diameter of 50 mm at the opening).
• silicone rubber cupping device because it can produce two at a time, the amount of liquid silicone rubber injected is more, so the holding time is longer, it can be 1 minute to 1.5 minutes; for smaller (such as the inner diameter of the opening 30mm) Silicone rubber cupping equipment up to 40mm, outer diameter 40mm to 50mm) can produce 4 to 8 or more silicone rubber cupping tools at a time, and the holding time can be controlled according to the amount of liquid silicone rubber injected.
• the mold cavity 1 is also axisymmetric.
• the detachable front template 8 and row position 7 are urged by the inclined guide column 15 (see Fig. 2) to be perpendicular or perpendicular to the axial direction of the mold cavity 1 to both sides (Fig. 1 a, Fig. 1 b
• the left and right directions are separated to expose the outer mold face 26 of the silicone rubber cupping device solidified in the mold cavity 1 and the silicone rubber solidified in the hot runner 27 to the air.
• the separation manner of the detachable front template 8 may be a separation from the separation direction of the row position 7 (as in the case of FIG.
• the front template 8 may be the front template 8 as a whole and the row position 7. Separate the top and bottom (for example, Figure 1 a, Figure 1 b can be the front template 8 and the mouth 12), moving up, so that the front template 8 and the row position 7 are separated as a whole, that is, in this case, the wrapping position
• the template part of the front part of the template 8 may be integrated or not separated, or the front template 8 and the rear template 3 may be separated from each other (the front template 8 and the upper front mold cavity 72 are body-moving).
• the rear template 3 and the lower front mold cavity 71 are body-moving, and the two parts are separated from each other).
• the front template 8 may also be a unitary structure rather than a separable structure, in which case the front template 8 is separated from the row position 7 and does not interfere with the separation of the row position 7 itself.
• the blow release device 6 includes the blow hole 21, the blow hole opening 23, and the blow needle, as shown in Fig. 4, the inner core 4 is opposed to the solidified silicone rubber cupping device in the mold cavity 1
• the blowing holes 21 passing through the inner core 4 are relatively moved in the axial direction of the blowing holes 21, and of course the blowing holes may be curved.
• the inner core 4 is moved upward together with the solidified silicone rubber cupping tool in the mold cavity 1; in the case of Fig.
• the inner core 4 is made of the inner mold insert 5 and the inner mold core 4
• the detachable structure composed of the core holder 41, the inner mold insert 5 and the inner core holder 41 move upward together with the solidified silicone rubber cupping device in the mold cavity 1; and the blow release device fixing plate 1 6 and the blowing needle fixed thereto remains stationary, and therefore, in Fig. 1a, the inner core 4 is together with the silicone rubber cupping device solidified in the mold cavity 1 with respect to the blowing needle (the blowing needle) It is fixed to the blow molding release device fixing plate 16 and passes through the inner core 4) to face the relative movement in the axial direction of the air blowing passage 21, thereby forming a gap between the air blowing needle and the top of the silicone rubber cupping device 1.
• a space which may be only a few millimeters long, is sufficient for the blowhole opening 23 to communicate with the mold cavity 1 for subsequent blow-off demolding.
• Blowing and demolding High pressure gas is blown to the inner top surface of the inner mold face 25 of the vulcanized silicone rubber cupping device by the blow molding device 6 (preferably at a gas pressure of 6 to 7.5 atmospheres), upward high pressure gas The inner surface of the silicone rubber cupping device flows so that the hot, solidified silicone rubber cupping device is detached from the inner mold face 25 and is blown into the container (such as a basket). Thereby completing the production and demoulding of one or a batch of silicone rubber cupping devices.
• Cycle production Repeat steps 2) through 4) above to achieve batch, automated production.
• the step 1) of the third embodiment is the same as the preheating and cooling protection process of the step 1) of the first embodiment.
• the step 2) since the amount of the silicone rubber cupping device produced is increased, the amount of the liquid silicone rubber used is large, so after the feeding, the liquid silicon in the cold flow path 17 needs to be passed through the sealing process of the sealing pin 22. Rubber does not flow out, as follows:
• a sealing needle 22 is provided, and the sealing needle 22 is connected to the high-pressure gas source through the air outlet 14, such as a cylinder (the cylinder is used to provide a high-pressure gas source, not shown in the figure), and The needle at one end is connected to the cold runner 17 or the nozzle 12, and extends into the cold runner 17 or the nozzle 12.
• the valve 20 is closed to stop the liquid silicone rubber from flowing into the cold runner 17, and then the cylinder is opened to make the high pressure gas.
• the cold runner 17 and/or the nozzle 12 are flushed through the air outlet 14 and the sealing needle 22, and the liquid silicone rubber remaining in the cold runner 17 or the nozzle 12 is flushed out of the cold runner 17 or the nozzle 12 on the one hand.
• the liquid silicone rubber is prevented from being vulcanized and solidified in the cold runner 17 or the nozzle 12, thereby eliminating the cleaning of the cold runner 17 and the nozzle 12, and on the other hand forming a gas column in the cold runner 17 or the nozzle 12.
• the air pressure generated by the gas column can prevent the liquid silicone rubber at the tail of the cold runner 17 from flowing into the cold runner 17 and the nozzle 12 to cause contamination.
• the high-pressure gas source connected to the sealing needle 22 may be the same gas source as the high-pressure gas source of the blowing needle, and may of course be two different high-pressure gas sources.
• the holding time needs to be appropriately extended according to the amount of the liquid silicone rubber, and the case of producing two silicone rubber cupping devices at one time as shown in Fig. 3 should be maintained for 1 minute to 2 minutes. .
• the row position 7 is divided into left and right pieces.
• the row position 7 is divided into upper and lower portions, a lower front mold cavity 71 and an upper front mold cavity 72, and the inner core 4 is formed by an inner mold.
• the detachable structure composed of the piece 5 and the inner core holder 41, of course, the inner core 4 may also be an integral structure as shown in FIG. 1a, during the demolding process of step 4),
• a part of the row position 7 here preferably, the lower front mold cavity 71
• the inner mold insert 5 which moves together And moving downward with the inner core holder 41, the mold cavity 1, the blowing and releasing device fixing plate 16 and the blowing needle fixed thereto, at this time, the upper half of the outer molding surface 26 of the row 7 Exposure to the air.
• the separable row position 7 (here preferably the lower front mold cavity 71) in contact with the silicone rubber cupping device is then separated from the silicone rubber cupping device (specifically, it can be separated from the rear template 3 by the push rod 9).
• the silicone rubber cupping device specifically, it can be separated from the rear template 3 by the push rod 9.
• the inner mold insert 5 and the inner core holder 41 together with the solidified silicone rubber cupping tool in the mold cavity 1 are passed through the inner core holder 41 and the inner mold.
• the blowing tunnel 21 of the member 5 is moved in the opposite direction of the axial direction of the blowing tunnel 21 (in FIG. 3, it is moved backwards in the left-right direction by the push rod 9, and of course other driving methods are possible. Force under the movement), thus in the blowing needle and A space is formed between the inner mold faces 25.
• the blowing needle is away from the inner mold surface 25, and the blowing needle and the blowing and releasing device fixing plate 16 may be fixed while the inner core fixing frame 41 and the inner mold insert 5 are moved, or the inner core may be fixed.
• the frame 41 and the inner mold insert 5 are fixed and the blow needle and the blow mold release device 16 are moved, and the two can simultaneously be moved away from each other.
• step 4.3 The demolding process of step 4.3) and the cyclic production process of step 5) are the same as in the second embodiment.
• the silicone rubber cupping device prepared by the above device and method has the characteristics of high elasticity, high transparency, and complicated shape.
• the flexible silicone rubber cupping device can achieve negative pressure and absorb the skin without ignition, and its transparency can help the doctor to clearly observe the patient's skin condition and facilitate timely adjustment of medical treatment.

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• 2012
  • 2012-12-31 EP EP12861698.4A patent/EP2799204B1/de not_active Not-in-force
  • 2012-12-31 WO PCT/CN2012/088000 patent/WO2013097800A1/zh active Application Filing
  • 2012-12-31 PL PL12861698T patent/PL2799204T3/pl unknown
  • 2012-12-31 CN CN201210592839.XA patent/CN103182763B/zh not_active Expired - Fee Related
  • 2012-12-31 CN CN201510883062.6A patent/CN105538585B/zh not_active Expired - Fee Related
• 2014
  • 2014-06-30 US US14/318,708 patent/US9573305B2/en not_active Expired - Fee Related
• 2015
  • 2015-05-05 HK HK15104274.2A patent/HK1203895A1/xx not_active IP Right Cessation

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